When the cotton cover of a fire hose becomes oily or greasy, it should be washed with a solution of mild soapy fresh water and __________.

Correct Answer: Option B — a soft-bristled brush

Fire hose maintenance requires gentle cleaning to preserve the integrity of the jacket. A soft-bristled brush is the appropriate tool for removing grease or oil without damaging the fibers. Harsh chemicals or wire brushes can compromise the structural strength of the hose, leading to potential failure under pressure.